4 layers28 × 80 mm
ESP32-PoE Rev M
OLIMEX/ESP32-POE
ESP32 IoT development board with 100Mb Ethernet and 802.3 Power Over Ethernet (POE)
142 parts415Apache-2.0
2 layers36 × 122 mm
ESP32 Soil Moisture Sensor
rup2014/Soil-Moisture-Sensor-PCB-SchematicThis project contains the KiCad schematic and PCB layout for a soil moisture reader built around the ESP32-WROVER module.
- Size
- 36 × 122 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 9
- Nets
- 27
- Pads
- 79
- Tracks, vias
- 85, 10
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 29 Jan 2024
- Updated
- 13 Jul 2025
Overview
ESP32 Soil Moisture Sensor is an open-source printed circuit board by rup2014, from the rup2014/Soil-Moisture-Sensor-PCB-Schematic repository on GitHub. It is a 2-layer board of 36 × 122 mm with 9 parts on 27 nets, routed with 85 tracks and 10 vias.
It is built around the ESP32-WROVER-E(4MB) and FSM8JSMASTR. Its parts include 3 capacitors, 3 connectors, 1 resistor, 1 IC and 1 switch. It belongs with the sensors and measurement boards and the ESP32 boards of this library.
Main components
2README
README.mdSoilMoistureReaderDesign
This project contains the KiCad schematic and PCB layout for a soil moisture reader built around the ESP32-WROVER module.
Features
- ESP32-WROVER Based: Utilizes the powerful ESP32-WROVER
- Programming Header: A 4x1 header enables convenient programming of the ESP32.
- OLED Display Support: A second 4x1 header is provided for connecting an SSD1306 OLED display to show real-time readings.
- Enable Button: Used in conjuction with programming header to flash the ESP32.
- Manual Scan Button: Includes a button allowing users to manually trigger soil moisture scans.
Hardware Overview
- Microcontroller: ESP32-WROVER
- Display: SSD1306 OLED (via header)
- Programming Interface: 4x1 header
- Enable/Reset Button: Enable Flash/Reset button
- User Input: Manual scan button
Getting Started
- Clone the Repository
text git clone https://github.com/rup2014/SoilMoistureReaderDesign.git - Open the KiCad Project
- Launch KiCad and open the project files in this repository.
- Review Schematics and PCB
- Schematics and PCB files are provided for hardware fabrication and modification.
Usage
- Connect the ESP32-WROVER and SSD1306 OLED as indicated in the schematic.
- Use the programming header for firmware uploads.
- Use the manual scan switch to initiate readings.
License
This project is open-source. See the LICENSE file for more details.
Author
- Maintained by rup2014
For questions or contributions, feel free to open an issue or pull request.
Parts
9| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 0.1uF | Capacitor_SMD:C_0201_0603Metric | C1, C3 |
| 2 | Conn_01x04_Socket | Connector:FanPinHeader_1x04_P2.54mm_Vertical | J1, J3 |
| 1 | 10k | Resistor_SMD:R_0201_0603Metric | R1 |
| 1 | 10uF | Capacitor_SMD:C_0201_0603Metric | C2 |
| 1 | ESP32-WROVER-E | PCM_Espressif:ESP32-WROVER-E | U1 |
| 1 | FSM8JSMASTR | footprints:SW4_FSM8JSMASTR_TEC | SW1 |
| 1 | S2B-PH-K-SLFSN | footprints:CONN_S2B-PH-K-S_JST | J2 |
Questions
How big is the ESP32 Soil Moisture Sensor PCB?
It measures 36 × 122 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ESP32 Soil Moisture Sensor use?
9 parts, built around the ESP32-WROVER-E(4MB) and FSM8JSMASTR. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the ESP32 Soil Moisture Sensor KiCad files?
From the rup2014/Soil-Moisture-Sensor-PCB-Schematic repository on GitHub, at the commit this page was made from: the board is ESP32 Soil Moisture Sensor.kicad_pcb and its schematic ESP32 Soil Moisture Sensor.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ESP32 Soil Moisture Sensor design in my own project?
Its repository states no licence, so its author keeps all rights: ask rup2014 before reusing the design.
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